Not really a need to gear a diesel, especially with a Rubicon. The transmission will be the weak point but with the advances in clutches and converters you will actually enjoy better fuel economy on the freeway with larger tires. In the old days when we only had 3-5 speeds the gaps were too...
These rants always crack me up. No one clicks all the boxes for savings. The efficiency of diesel is a byproduct of the most efficient combustion cycle known to humans and that's it. No one was ever clicking the option for a big block for savings. They could afford the best money could buy...
So glad to have a Jeep back in the driveway to enjoy adventuring in with the family on the weekend. We have them at the ranches but don't get out to them enough to really enjoy them for just good off road wheeling. Have been really excited and chomping at the bit to get one of these EcoDiesels...